Slider for automatic fasteners



Feb. 28, 1933. E. w. RUTHERFORD I I 1,899,529

SLIDER FOR AUTOMATIC FASTENERS Filed May 15; 1931 INVENTOR ffl'f/Vf l4! 7707/72: 0

- ATTORNEY v Patented Feb. 28, 1933 UNITED STATES PATENT OFFICE EUGENE w. EUTHEEEOEOQOE NEw HAVEN, CONNECTICUT, AssIoNoE To THE sEOE -H.ABDWABE COMPANY, or W TEREUEY, CONNECTICUT, .A CORPORATION OF CON- NECTICUT sLInE EoE AUTOMATIC EAs'TENEas Application filed May 15, 1931. Serial No. 537,512.

My present invention relates to automatic interlocking fasteners and more particularly to an improved slider for operating the same.

The slider for operating automatic interlocking fastener members arranged in staggered relation on adjacent or aligned stringers, is usually provided with means for assisting in moving the slider along the fastener elements. This means ordinarily consists of a pull tab or bail pivoted or pivoted and 'slidably mounted on a bail holder that is attached to one wing of the slider body. One

method of attaching the bail holder to the wing of the slider body is illustrated in my Patent No. 1,752,111, granted March 25, 1930. By referring to such patent, it will be seen that one end of the bail holder is securely locked to the slider body by a pair of folded lugs formed integrally with the body and the other end of the bail holder is attached to the wing of the slider body by what is practically a dovetail joint. -This dovetail joint is relatively difiicult to make accurately and economically, special tools being required not only in the formation of the dovetail portion in the wing of the slider body, but also in the manufacture of the corresponding portion on the bail holder itself. Also this type of joint is relatively weak and too great a proportion of the Operating strain is placed on the holding lugs.

My present invention is an improvement on the construction shown in my Patent No. 1,7 52,111, above referred to, and without limiting the invention otherwise than as required by the prior art, the same consists in a form of connection between one end of the .bail holder and the associated wing of the slider body. In carrying out my invention, I form a rectangular slot in the desired wing of the slider body, as in former constructions, and then strike up a portion of the material of the wing adjacent one end of the rectangular slot. Such struck-up portion lies at an angle to the wing of the slider body and the uppermost end of the angularly placed struck-up I forman ordinary slot of any suitable depth and of a width substantially. equal to the thickness of the metal of which the body of the slider is composed. This construction is relatively simple and inexpensive to make,

and the holding power of this end of the bail holder is greater than the holdingpower of the end of the bail holder that is secured to the slider body by the pair of lugs above referred to.

' The object of my invention therefore is an improved slider for interlocking fastener elements.

In the accompanying drawing illustrating a preferred embodiment of my invention;

Figure 1 is a plan view of a slider body before the operation of placing the wings in parallel-relation to each other takes place;

Figure 2 is a plan view of a pull tab or bail Figure 3 is a perspective view of a bail holder manufacturedaccording to the present invention;

Figure 4 is a perspective view of a fastener slider and also a perspective view of a bail holder with a pull tab or bail positioned thereon and'ready to be assembled with the slider body, and

Figure 5 is a sectional side elevation of a slider body with the bail holder and a bail assemble-d thereon.

Referring to the drawin 10 designates a fastener slider composed o wings 11 and 12 joined together by a relatively narrow neck 13 and between the wings 11 and 12 and from wing 13, is formed a rectangular slot 15 of'any suitable width and length and at the end of the rectangular slot 15 remote from the neck 13 is formed a connecting element 16. This connecting element is formed by striking up the metal of the wing 12 at an angle to the body of said Wing as clearly shown in the drawing and the portion of the connecting member 16 adjacent the rectangular slot 15 is struck up to a height above the surface of the wing 12 suflicient to place such end in a plane slightly above the plane in which lies the upper surface of such wing 12.

either side of the neck 13 extend laterally outward lugs 14. In one of the wings, as the,

6 edgewith spaced ears 19. -At the other end of the body 17 is formed a slot 20 that extends into the body 17 at an angle as clearly shown in Fig. 3. In the body 17 is also formed and pull tab 24 on the slider .10, the end con a groove 21 which acts as a bearin for the bail 22-this bail being provided wlth 2. rectangular slot 23 that enables the same to be placed in sition on the body 17 as clearly shown in 4.

' The structure shown-in Fig. 1 is folded so as tobring the wings 11 and 12 into parallel relation with, each other as shown in Fig. 4, and in this folding operation there is formed in the neck 13 a transverse groove 25 in which fits the laterally extending portion 18 from the body 17. In assembling the bail holder 17 taining the transverse cut 20 is placed in the rectangular slot 15. The transverse slot 20 engages with the connecting element 16 and the laterally extending portion 18 is fitted into the transverse slot 25. When in this position the lugs 14 are forced in between the ears 19 on to of the portion 18, thus locking the bail hol er 17 in position on the slider 10 as clearly shown in Fig. 5.

By reference to Fig. 5 it will be noted that l the connection between the connector 16 and g I claim and desire to protect by Letters transverse slot 20 is relatively substantial proportionto the size of the elements employed and that the holding power of the 1. A separable fastener slider having in combination, a pair of parallelly arranged w ngs spaced apart from each other, a neck member joining such wings together ,at one end, and having a slot extending transversely of, the wings, a pair of ears formed on the 'neck member and ada ted to be folded across the top of the slot, 8. olding element struck .up from one wing at an angle thereto, and a bail holder having one end extending into 'the transversely extending slot and secured therein by said ears, and the other end having a slot into which the holding element extends.

2. A separable fastener slider having in combination a pair of parallelly arranged .wmgs spaced .apart from each other, a neck Lseaaae member joining-such wings together at one.

end, a bail holder provided at one end with a slot of a width equal at least to the thickness of the material of the wings, means on the neck member for attachingthe end of the bail holder, remote from the slot, and a holding element on one of the wings struck up from the wing material and fitting into. the slot in the end of the bail holder for attaching the same to the wing.

3. In a separable-fastener. slider, comprised of'a pair of parallelly arranged wings attached together at one end, the combination with a bail holder provided at one end with a slot of a width substantially equal to the thickness of the material of the wings, of a holding element fitting into said slot and formed of a portion of the material of one of the wings bent up from the said wing and at an angle thereto.

4. In a separable fastener slider comprised of a pair of parallelly arranged wings,at-' tached together at one end, the combination with a bail holder provided at one end with a slot of a width substantially equal to the thickness of the material of the wings, of a holding element fitting into said slot and formed of a portion of the materialof one of the wings, said portion being'struck up from the wing to a point above the surface.

of such wing.

Signed at Waterbury, county of New Haven, State of Connecticut, this 11 day of May, 1931.

EUGENE W. RUTHERFORD. 

